Finding the Fourth Proportional to 16,441.50, 22,689.27 and 8,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,441.50 : 22,689.27 = 8,989.50 : x
2. Step 2: Convert to fraction form
   16,441.50/22,689.27 = 8,989.50/x
3. Step 3: Cross multiply
   16,441.50x = 22,689.27 × 8,989.50
4. Step 4: Simplify right side
   16,441.50x = 203,965,192.67
5. Step 5: Solve for x
   x = 203,965,192.67/16,441.50
6. Step 6: Final answer
   x = 12,405.51